Mumballup is a locality in the South West region of Western Australia, situated between Collie and Boyup Brook, south of Perth. The town is in the Shire of Donnybrook-Balingup.
It was the location of the death of the former premier of Western Australia James Mitchell in 1951, on a train on the DonnybrookâÂÂKatanning railway line. Mumballup was once a siding on the DonnybrookâÂÂKatanning railway but the railway line ceased operation in 1982. The Mumballup siding, which opened in 1908, was closed in 1980.
It is a location on the Bibbulmun Track.
Mumballup and the Shire of DonnybrookâÂÂBalingup are located on the traditional land of the Wardandi people of the Noongar nation.